Apparatus for and a method of duplicating



J. H. TATHWELL APPARATUS FOR AND A METHOD OF DUPLICATING Nov. 5, 1940.

Filed June 25, 1938 2 Sheets-Sheet 2 Z RN w 5. M 1 M 6 4 J HQ MN \N NPatented Nov. 5, 1940 UNITED STATES PATENT OFFICE msas'rns son sun aMETHOD or v 4 nurucs'rme Joseph B. rsmweu, Charlotte, is. 0., aalignorto Ditto, Incorporated, Chicago, IlL, a corporation of West Virginia aplication has 25.1930. serial No. 215,770

. 1: m (cumn) The-invention relates to apparatus for and a duplicated istypewritten'or written in positive with hectograph ink on a plurality ofstrips of paper, eachof which strips, for example, maybe the record ofthe weekly payroll data for a certain individual. Along one edge of eachstrip, data is typewritten or. written giving the name of the individualand the amount the indlvidual'is to 16 receive for the-week. Other data,such as the number of hours or days of work for the week, mayv also beincluded. Each of these strips has a plurality of holes along one edgethereof so that the strips maybe assembled in overlapping :0relationship upon a pegboard device with the matter to be duplicatedappearing on the extending edge portions of the several strips, the pegsor pins oitheboard being muchsmaller in diameter than the holes in thestrips. This difa ferential size of the openings facilitates the task oidistributing the strips upon the pegboard device in such manner that thedata to be duplicated is left exposed. After the strips are mounted onthe pegboard, they are aligned so go as to be brought into properposition with respect to each other by'pressure on the ends of thesheets along the assembly by means'of' an aligning member or bar, afterwhich a clamp is employed to hold the stripsin their aligned con- 35dition and the assembly is removed from the pegboard and applied facedown to a gelatin pad so that the data to be duplicated appears inreverse upon the pad. A copy sheetmay then be applied to the pad forduplicating in positive on the one sheet all of the exposed-dataappearing in hectograph ink on the several strips.

- It is another object of my invention to improve apparatus of this typeand the method of duplicating in sundry details as hereinafter setforth.

45 The preferred means and methods by which I have accomplished myseveral objects are illustrated in the accompanying drawings, in which,

Fig. i is a perspective view of the preterred form of my improvedstructure for arranging a 50 plurality of master sheets in assembledrelation to each other .for duplicating purposes.

Fig. 2 is an end view. of the device of Fig. 1.

Fig. 3 is a top plan view of the device of Fig.

1 but with a plurality of master sheets loosely mounted in overlappingposition thereon for ex-' tion with respect to each other.

posing a portion of a top face of each of said sheets. v

Fig.4 is a view similar to Fig. 3 but with the master sheets moved totheir normal adjusted positions and with a ripping or clamping device -amounted effectively in position on the adjusted sheets.

Fig. 5 is a vertical sectional view taken substantially at the line 5-5of Fig. 4; and

- Fig. 6 is a perspective view of the adjusted asl0 sembly-of sheetswith the clamping device there-Y on, suchassembly being in invertedposition with a plurality of round pegs secured in its top face inevenly spaced relation adjacent to one edge of the. board, the pegsbeing in aligned position side by side. As is, best shown in Figs. 2 and5, the board it is provided with supporting members I! of any suitabletype at its corners on its bottom face for supporting the board evenlyupon a table or other level surface.

In Fig. 3, there are shown a plurality of master sheets I! each-in theform of a comparatively narrow strip preferably formed of paper, havinga plurality of openings H in their end portions of considerably greaterdiametrical size than that of the pegs H. The openings ll are arrangedin evenly spaced relation to each other across the ends of the masterstrips IS, the spacing bein'g v such that the strips are capable ofbeing mounted 'quickly and easily upon the pegs or pins II, and

being capable oi having an edgewise shifting movement with respect tothe board It when so mounted loosely upon the pegs.

In'the arrangement as shown in Fig. 3, the openings H are circular inshape, so that the side portions of the openings adjacent tothe edge oithe sheet are obliquely disposed. As a result of thisarrangement, whenthe sheets I! are pressed in any manner towardthe left in Fig. 3, theopenings fare brought into centered position in one directionwithrespect to the pegs and the sheets or strips are aligned accuratelyin parallel posi- Means is provided on my improved board II for pressingthe sheets it toward the left in Fig. 3, such means comprising a bar I!which is hingedly mounted at its lower edge at i6 upon the-edge of theboard. (see Fig. 5), the ar- 'gthepegsii.

swung upwardly to its raised position as shown in Figs. 4 and 5, it isbrought into ioroibiejm gagement with thcend portions of the sheets or 5strips Ilsoastopresssuchstripstransvsssely ll oi this arrangement, thespring ll serves to hold the alignment bar I! yieldingly in its raisedposition as shown in Fig. 5 and serves alternatlvely to hold saidalignment bl! II in the position as shown in Pigs. 1 and 2.

I With a plurality of master strips ll mounted loosely in position uponthe pegs Ii on the board II, as is clearly shown in I'is; 3,-a portionoi thetop iace of each of the strips is exposed to view; in thearrangement oi the strips as shown in Hg. SI 3 the upper edge portion ofeach of said strips is so exposed. The master strips ll are designed tohave any desired data written in hectograph ink upon the top edgeportion oi each of the strips so that the copy ink entries are exposedI. at the top face oi the assembly as shown in Pig. 3. when the desirednumber oi strips 13 has been placed in position upon the pegs II, thealignment bar I! is to be moved from the positionasshowninlig.2tothepositionasshown I in Fig. 5, for bringing such bar into engagementwith the end portions of the strips for movirm them into adjustedparallel position as shown in Fig. 4, the spring ll being of suchstrength astobringthealignmentbarupsharplytoits 4 raised position.

After the strips are brought into alignment as shown in Fig. 4, agripping or clamping device is is to be applied to the free end portionsof the strips as shown in said Fig. 4. In the arrangement shown, I haveemployed a clamping device comprising a plate 20, and a clamping bar Itmovably mounted with respect to the piate 2!, such clamping bar II inthe arrangement shown being provided with a pressure strip 22 preferablyof rubber. The bar ii in the arrangement shown is carried by an armwhich has a pivotal connection with the plate il, a spring 26 beingprovided'ior normally holding the pressure strip 2! in engagement withthe top iace oi u the plate 2|. In-the arrangement shown, the

plate to is provided with a downwardlyextending flange II along oneedge.

With an improved clamp ll mounted upon the strips I! as shown in Fig. 4,the operator expedited by the fact that the openings H of enlarged sizeas compared with the size The grip of the clamping device ll upon thesheets is such that the held strongly in their adjusted position reperdevice for pressing the top face oi the strips it into engagement with aduplicating medium such as the gelatin ban 2' as shown in Fig. 6. Afterthe perforated end portions of the assembled strips II are pressed intobonded relation with the gelatin member I, the-gripping 2 v i o,'sso,a'oo shaped oi the-strips'are pressed flto' bondedreiation with the Mmember.

Aiter'the master strips ll have been leit in .upon'the gelatin memberfor .the res which method comprises arranging the strips ad- 0 jmtablyin overlapping relationship on a series oi pins so that a portion ofeach strip is exposed for duplicating purposes, aligning the strips bypressing them against said pins by pressure applied -to the edges oisaid strips along one edge of the assembly oi strips, clamping thestrips together in adjusted position, and then applying the clampedassembly oi strips face downwardly on a duplicating medium fortransferring the subject matter in reverse from the several strips tosaid duplicating medium.

2. A method of duplicating subject matter from a plurality oi mastersheets each having a plurality oi openings therethrough at one edgeportion, which method comprises arranging the several sheets adjustablyin overlapping relationship on a series of pins on a support so that aportion oi the duplicating face of each sheet is exposed, adjusting thesheets accurately with respect to each other on said support forduplicating purposes by preming them against said pins by manipulationoi the sheets from one side only of the assembly of sheets, clamping thesheets together in adjusted position on the support, then removing theclamped sheets from the support and apor, plying the assembly to aduplicating medium for transierring the subject matter in reverse iromthe several sheets to said duplicating medium and then applying copysheets to the duplicating medium for producing the compositesubjeot'mat- 7o ter in positive on said copy sheets. I v

3. A method oiduplteatins subject-matter irom a plurality oi mastersheets, which methodcomprises arr-angi a the several sheets isce ma nlyin overlapping relationship so that said sheetsaiej free to have atleast a slight swinging movement edgewise with respect to each otherabout axes arranged in substantial alignment with each other near oneedge of the assembly of sheets, and so that a portion of each sheet isexposed at-the top face of the assembly of sheets, than aligning theseveral sheets by pressure applied along the edge of the assembly ofsheets adjacent to said line of axes, then clamping the sheets togetherin adjusted position, and then applying the clamped assembly of sheetsface downwardly on a duplieating medium for transferring the subjectmatter from the several sheets in reverse to said duplicating medium.

4. A method of duplicating subject matter from a plurality of mastersheets, which method comprises arranging the several sheets faceupwardly in overlapping relationship to each other so that said sheetsare free to have at least a slight edge-. wise movement with respect toeach other and so that a portion of each sheet is exposed at the topface of the assembly of sheets, then moving the several sheets intoparallelism with each other by pressure applied along one edge of theassembly of sheets, then clamping the sheets together in adjustedposition, and then applying the clamped assembly of sheets facedownwardly on a duplicating medium for transferring the subject matterfrom the several sheets in reverse to said duplicating medium.

5. A method of duplicating subject matter from a plurality of masterstrips, whlchmethod .comprises arranging a plurality of comparativelynarrow master strips of similar size and 'arrange-' ment face upwardlyin overlapping relationship to each other so that said strips are freeto have an edgewise sliding movement with respect to each other and sothat a transversely extending edge portion of each strip is exposed atthe top face of the assembly of strips, then moving the several stripsinto parallel position with respect to each other by pressure appliedevenly on the ends of the several strips at one edge of the assembly ofstrips, then clamping the strips together in their adjusted parallelpositions, and then applying the clamped assembly of strips facedownwardly on a duplicating medium for transferring the subject matterfrom the several strips in reverse to said duplicating medium.

6. An apparatus for duplicating from a plurality of master sheets havingopenings therethrough' in spaced relation along corresponding edges, thecombination of a board, pegs extending from the face of said board inaligned position side by side along one edge of the board incorrespondingly spaced relation for enabling master sheets of the typenamed to be mounted adjustably thereon in overlapping relationship toeach other, and means for applying pressure evenly along the boardadapted by engagement with a plurality of master sheets on said pegs tomove said master sheets into similarly aligned positions on said board.

, '7. An apparatus for duplicating from a plurality of master sheetshaving openings therethrough in spaced relation along correspondingedges, the combination of a board. pe s extending from the face of saidboard in aligned positions side by tionship to each other are adapted tobe shifted edgewise with respect to each other on said pegs, and meansfor applying pressure evenly on corresponding edge portions of saidmaster sheets serving to move said sheets into parallel position withrespect to each other for duplicating purposes.

8. An apparatus for duplicating from a plurality of master sheets havingopenings therethrough in spaced relation along corresponding edges, the

combination of a board. was extending from the edge of the sheet so asto cooperate with said pegs for bringing the master sheets into par--allelism with each-other when the sheets are pressed transversely withrespect to the board, and means movably connected with said board forapplying pressure evenly on corresponding edge portions of said mastersheets adjacent to said pegs for bringing said sheets into normaladjusted position with respect to each other for duplicating purposes. 7

9. An apparatus for duplicating from a plurality of comparatively narrowstrips having openings therethrough in spaced relation to each otheracross corresponding ends of the strips and rounded at their outer faceportions, the combination ofa board, pegs extending from the face ofsaid board in aligned positions side by side along one edge of the boardin correspondingly spaced relation to each other and rounded on theirouter face portions but of substantially smaller size'than that of theopenings in said master strips'whereby a plurality of said stripsmounted on said pegs in overlapping relationship, to each other areadapted to be shifted edgewise with respect to each other when mountedloosely on said was and are adapted to beb'rought into parallelism witheach other when the perforated end portions of the strips are pressedagainst said pegs, and means movably'mounted on said board for applyingpressure evenly on the perforated end portions of said strips adjacentto said pegs for bridging said strips into normal parallel adjustedposition with respect to each other for duplicating purposes. I

10. An apparatus for duplicating from a plurality of master sheetshaving openings therethrough in spaced relation along correspondingedges, the combination of a board, pe sextending from the face of saidboard in aligned position side by side along one edge of the board incorrespondingly spaced relation for enabling master sheets of the typenamed to be mounted adjustably thereon in overlapping relationship toeach other, a bar pivotally mounted on the edge of said board adjacentto said row of pegs in position to engage the edges of the master sheetsmounted on said pegs, and yielding means for moving saidbar forciblyinto engagement with said sheets serving to move said sheets intosimilarly aligned positions on said board.

11. An apparatus for duplicating from aplurality of master sheets'havingopenings therethrough in spaced relation along corresponding edges, thecombination of a board, pegs extending from the face of said board inaligned position side by side along one edge of the board in.

correspondingly spaced relation for enabling master sheets of the typenamed to be mounted adjustably thereon in overlapping relationshipto.

each other, a bar pivotally mounted on the edge of said board adjacentto said row of pegs in position to engage the edges of the master sheetsmounted on said pegs, and a spring connected with said board and withsaid bar so as to move said bar forcibly into engagement with saidsheets and serving thereby to move said sheets into similarly alignedpositions on said board and adapted alternatively to hold said bar swungpast centers away from the edge oi the board.

12. An apparatus for duplicating from a plurality or mastersheets havingopenings therethrough in spaced relation along corresponding edges, thecombination of a 'board, pegs extending from the face oi said board inaligned positions side by side along one edge 0! the boardincorrespondingly spaced relation to each other but of substantiallysmaller size than ,that' oi,the

openings in said master sheets whereby a plurality oi said sheetsmounted on the pegs in o'v'erlapping relationship to each other-areadapted to be shiited edgewise with respect tofeach other on said pegs,said openings in each o'i'said master sheets having obliquely disposedside portions ad-' Jacent to the edge of the sheet so as to cooperatewith said pegs i'or bringing themaster sheets into parallelism with eachother when the sheets are pressed transversely with respect to theboard, and a bar pivotally mounted on the edge oi said board adjacent tosaid row of pegs in position to engage the edge portions of said mastersheets for bringing said sheets into normal adjusted to each other forduplicatthrough in spaced relation along corresponding edges. thecombination 0! a board, pegs extending from the race oi said board inaligned positions side by side along one edge of the board incorrespondingly spaced relation to each other but of substantiallysmaller size than that oi the openings in said master sheets whereby a.plurality oi sald sheets mounted on the pegs in overlapping relationshipto each other are adapted to be shifted edgewlse with respect to eachother on saidpegs, said openings in each oi said master sheets havingobliquely disposed side portions adiacent to the edge of the sheet so asto cooperate with said pegs ior the master sheets into parallelism" witheach other when the sheets are pressed transversely withrespect to theboard.- so

e bar pivotally mouhtedonthe edge of saidboard adjacentto said row oiadapted bran operativestroke to engagethe' edge portions oi said gnastersheets for brinlins said sheets into normal adjusted position withrespect to each other 86 ior duplicating purposeqand a spring connectedwith said and with said bar and arranged to pass centers adapted in onepositionto cause said her to press forcibly against corresponding sheets'into parallelism with each other and adapted in a changed position tohold said bar swung awa'yYrom the edge of the board. V r JOSEPH H.TATHWILL;

edge portions of said sheets for bringing said

